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Revision: 1.181
Committed: Sun Oct 14 19:56:02 2018 UTC (5 years, 7 months ago) by root
Branch: MAIN
Changes since 1.180: +2 -0 lines
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# Content
1 Revision history for Perl extension JSON::XS
2
3 TODO: maybe detetc and croak on more invalid inputs (e.g. +-inf/nan)
4 TODO: maybe avoid the reblessing and better support readonly objects.
5 TODO: http://stevehanov.ca/blog/index.php?id=104 compression
6 TODO: how to cope with tagged values and standard json decoders
7 TODO: investigate magic (Eric Brine)
8 TODO: rfc7464
9 TODO: Victor Efimov
10 TODO: move json_xs to types::serialiser?
11
12 TODO: [PATCH] Types::Serialiser: Inline true(), false() and error() functions
13
14 TODO: document & testcase ->boolean_values (aristoteles).
15 - json_xs json-pretty now enables canonical mode.
16
17 3.04 Thu Aug 17 04:30:47 CEST 2017
18 - change exponential realloc algorithm on encoding and string decoding to be
19 really exponential (this helps slow/debugging allocators such as libumem)
20 (reported by Matthew Horsfall).
21 - string encoding would needlessly overallocate output space
22 (testcase by Matthew Horsfall).
23 - be very paranoid about extending buffer lengths and croak if buffers get too large,
24 which might (or might not) improve security.
25 - add cbor-packed type to json_xs.
26 - switch from YAML to YAML::XS in json_xs, as YAML is way too buggy and outdated.
27
28 3.03 Wed Nov 16 20:20:59 CET 2016
29 - fix a bug introduced by a perl bug workaround that would cause
30 incremental parsing to fail with a sv_chop panic.
31 - json_xs: toformat failure error message fixed.
32 - json_xs: allow cyclic data structures in CBOR.
33
34 3.02 Fri Feb 26 22:45:20 CET 2016
35 - allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
36 as well (reported by Alex Efros).
37 - allow literal tabs in strings in relaxed mode (patch by
38 lubo.rintel@gooddata.com).
39 - support "cbor" format in json_xs tool.
40 - support (and fix) calling encode and decode in list context
41 (reported by Вадим Власов).
42 - work around a bug in older perls crashing when presented
43 with shared hash keys (Reini Urban).
44 - use stability canary.
45
46 3.01 Tue Oct 29 16:55:15 CET 2013
47 - backport to perls < 5.18 (reported by Paul Howarth).
48
49 3.0 Tue Oct 29 01:35:37 CET 2013
50 - implemented an object tagging extension (using the
51 Types::Serialiser serialisation protocol).
52 - reworked the documentation regarding object serialisation,
53 add a new OBJECT SERIALISATION section that explains th
54 whole process.
55 - new setting: allow_tags.
56 - switch to Types::Serialiser booleans.
57 - remove to_json/from_json.
58 - other minor improvements to the documentation.
59
60 2.34 Thu May 23 11:30:34 CEST 2013
61 - work around bugs in perl 5.18 breaking more than 100
62 widely used modules, without a fix in sight because
63 p5pers don't care about CPAN anymore.
64 - when canonicalising, only allocate up to 64 hash key
65 pointers on the stack. for larger hashes, use the heap,
66 to avoid using too much stackspace.
67 - discuss the problem with setlocale (reported by a few victims).
68
69 2.33 Wed Aug 1 21:03:52 CEST 2012
70 - internal encode/decode XS wrappers did not expect stack
71 moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
72 - add bencode as to/from option in bin/json_xs.
73 - add -e option to json_xs, and none and string in/out formats.
74
75 2.32 Thu Aug 11 19:06:38 CEST 2011
76 - fix a bug in the initial whitespace accumulation.
77
78 2.31 Wed Jul 27 17:53:05 CEST 2011
79 - don't accumulate initial whitespace in the incremental buffer
80 (this can be useful to allow whitespace-keepalive on a tcp
81 connection without triggering the max_size limit).
82 - properly croak on some invalid inputs that are not strings
83 (e.g. undef) when trying to decode a json text (reported
84 and analyzed by Goro Fuji).
85
86 2.3 Wed Aug 18 01:26:47 CEST 2010
87 - make sure decoder doesn't change the decoding in the incremental
88 parser (testcase provided by Hendrik Schumacher).
89 - applied patch by DaTa for Data::Dumper support in json_xs.
90 - added -t dump support to json_xs, using Data::Dump.
91 - added -f eval support to json_xs.
92
93 2.29 Wed Mar 17 02:39:12 CET 2010
94 - fix a memory leak when callbacks set using filter_json_object
95 or filter_json_single_key_object were called (great testcase
96 by Eric Wilhelm).
97
98 2.28 Thu Mar 11 20:30:46 CET 2010
99 - implement our own atof function - perl's can be orders of
100 magnitudes slower than even the system one. on the positive
101 side, ours seems to be more exact in general than perl's.
102 (testcase provided by Tim Meadowcroft).
103 - clarify floating point conversion issues a bit.
104 - update jpsykes csrf article url.
105 - updated benchmark section - JSON::PP became much faster!
106
107 2.27 Thu Jan 7 07:35:08 CET 2010
108 - support relaxed option inside the incremental parser
109 (testcase provided by IKEGAMI via Makamaka).
110
111 2.26 Sat Oct 10 03:26:19 CEST 2009
112 - big integers could become truncated (based on patch
113 by Strobl Anton).
114 - output format change: indent now adds a final newline, which is
115 more expected and more true to the documentation.
116
117 2.25 Sat Aug 8 12:04:41 CEST 2009
118 - the perl debugger completely breaks lvalue subs - try to work
119 around the issue.
120 - ignore RMAGICAL hashes w.r.t. CANONICAL.
121 - try to work around a possible char signedness issue on aix.
122 - require common sense.
123
124 2.24 Sat May 30 08:25:45 CEST 2009
125 - the incremental parser did not update its parse offset
126 pointer correctly when parsing utf8-strings (nicely
127 debugged by Martin Evans).
128 - appending a non-utf8-string to the incremental parser
129 in utf8 mode failed to upgrade the string.
130 - wording of parse error messages has been improved.
131
132 2.232 Sun Feb 22 11:12:25 CET 2009
133 - use an exponential algorithm to extend strings, to
134 help platforms with bad or abysmal==windows memory
135 allocater performance, at the expense of some memory
136 wastage (use shrink to recover this extra memory).
137 (nicely analysed by Dmitry Karasik).
138
139 2.2311 Thu Feb 19 02:12:54 CET 2009
140 - add a section "JSON and ECMAscript" to explain some
141 incompatibilities between the two (problem was noted by
142 various people).
143 - add t/20_faihu.t.
144
145 2.231 Thu Nov 20 04:59:08 CET 2008
146 - work around 5.10.0 magic bugs where manipulating magic values
147 (such as $1) would permanently damage them as perl would
148 ignore the magicalness, by making a full copy of the string,
149 reported by Dmitry Karasik.
150 - work around spurious warnings under older perl 5.8's.
151
152 2.23 Mon Sep 29 05:08:29 CEST 2008
153 - fix a compilation problem when perl is not using char * as, well,
154 char *.
155 - use PL_hexdigit in favour of rolling our own.
156
157 2.2222 Sun Jul 20 18:49:00 CEST 2008
158 - same game again, broken 5.10 finds yet another assertion
159 failure, and the workaround causes additional runtime warnings.
160 Work around the next assertion AND the warning. 5.10 seriously
161 needs to adjust it's attitude against working code.
162
163 2.222 Sat Jul 19 06:15:34 CEST 2008
164 - you work around one -DDEBUGGING assertion bug in perl 5.10
165 just to hit the next one. work around this one, too.
166
167 2.22 Tue Jul 15 13:26:51 CEST 2008
168 - allow higher nesting levels in incremental parser.
169 - error out earlier in some cases in the incremental parser
170 (as suggested by Yuval Kogman).
171 - improve incr-parser test (Yuval Kogman).
172
173 2.21 Tue Jun 3 08:43:23 CEST 2008
174 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
175 - remove the experimental status of the incremental parser interface.
176 - move =encoding around again, to avoid bugs with search.cpan.org.
177 when can we finally have utf-8 in pod???
178 - add ->incr_reset method.
179
180 2.2 Wed Apr 16 20:37:25 CEST 2008
181 - lifted the log2 rounding restriction of max_depth and max_size.
182 - make booleans mutable by creating a copy instead of handing out
183 the same scalar (reported by pasha sadri).
184 - added support for incremental json parsing (still EXPERIMENTAL).
185 - implemented and added a json_xs command line utility that can convert
186 from/to a number of serialisation formats - tell me if you need more.
187 - implement allow_unknown/get_allow_unknown methods.
188 - fixed documentation of max_depth w.r.t. higher and equal.
189 - moved down =encoding directive a bit, too much breaks if it's the first
190 pod directive :/.
191 - removed documentation section on other modules, it became somewhat
192 outdated and is nowadays mostly of historical interest.
193
194 2.1 Wed Mar 19 23:23:18 CET 2008
195 - update documentation here and there: add a large section
196 about utf8/latin1/ascii flags, add a security consideration
197 and extend and clarify the JSON and YAML section.
198 - medium speed enhancements when encoding/decoding non-ascii chars.
199 - minor speedup in number encoding case.
200 - extend and clarify the section on incompatibilities
201 between YAML and JSON.
202 - switch to static inline from just inline when using gcc.
203 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
204 - fix some issues with UV to JSON conversion of unknown impact.
205 - published the yahoo locals search result used in benchmarks as the
206 original url changes so comparison is impossible.
207
208 2.01 Wed Dec 5 11:40:28 CET 2007
209 - INCOMPATIBLE API CHANGE: to_json and from_json have been
210 renamed to encode_json/decode_json for JSON.pm compatibility.
211 The old functions croak and might be replaced by JSON.pm
212 comaptible versions in some later release.
213
214 2.0 Tue Dec 4 11:30:46 CET 2007
215 - this is supposed to be the first version of JSON::XS
216 compatible with version 2.0+ of the JSON module.
217 Using the JSON module as frontend to JSON::XS should be
218 as fast as using JSON::XS directly, so consider using it
219 instead.
220 - added get_* methods for all "simple" options.
221 - make JSON::XS subclassable.
222
223 1.53 Tue Nov 13 23:58:33 CET 2007
224 - minor doc clarifications.
225 - fixed many doc typos (patch by Thomas L. Shinnick).
226
227 1.52 Mon Oct 15 03:22:06 CEST 2007
228 - remove =encoding pod directive again, it confuses too many pod
229 parsers :/.
230
231 1.51 Sat Oct 13 03:55:56 CEST 2007
232 - encode empty arrays/hashes in a compact way when pretty is enabled.
233 - apparently JSON::XS was used to find some bugs in the
234 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
235 the testsuite.
236 - quite a bit of doc updates/extension.
237 - require 5.8.2, as this seems to be the first unicode-stable version.
238
239 1.5 Tue Aug 28 04:05:38 CEST 2007
240 - add support for tied hashes, based on ideas and testcase by
241 Marcus Holland-Moritz.
242 - implemented relaxed parsing mode where some extensions are being
243 accepted. generation is still JSON-only.
244
245 1.44 Wed Aug 22 01:02:44 CEST 2007
246 - very experimental process-emulation support, slowing everything down.
247 the horribly broken perl threads are still not supported - YMMV.
248
249 1.43 Thu Jul 26 13:26:37 CEST 2007
250 - convert big json numbers exclusively consisting of digits to NV
251 only when there is no loss of precision, otherwise to string.
252
253 1.42 Tue Jul 24 00:51:18 CEST 2007
254 - fix a crash caused by not handling missing array elements
255 (report and testcase by Jay Kuri).
256
257 1.41 Tue Jul 10 18:21:44 CEST 2007
258 - fix compilation with NDEBUG (assert side-effect),
259 affects convert_blessed only.
260 - fix a bug in decode filters calling ENTER; SAVETMPS;
261 one time too often.
262 - catch a typical error in TO_JSON methods.
263 - antique-ised XS.xs again to work with outdated
264 C compilers (windows...).
265
266 1.4 Mon Jul 2 10:06:30 CEST 2007
267 - add convert_blessed setting.
268 - encode did not catch all blessed objects, encoding their
269 contents in most cases. This has been fixed by introducing
270 the allow_blessed setting.
271 - added filter_json_object and filter_json_single_key_object
272 settings that specify a callback to be called when
273 all/specific json objects are encountered.
274 - assume that most object keys are simple ascii words and
275 optimise this case, penalising the general case. This can
276 speed up decoding by 30% in typical cases and gives
277 a smaller and faster perl hash.
278 - implemented simpleminded, optional resource size checking
279 in decode_json.
280 - remove objToJson/jsonToObj aliases, as the next version
281 of JSON will not have them either.
282 - bit the bullet and converted the very simple json object
283 into a more complex one.
284 - work around a bug where perl wrongly claims an integer
285 is not an integer.
286 - unbundle JSON::XS::Boolean into own pm file so Storable
287 and similar modules can resolve the overloading when thawing.
288
289 1.3 Sun Jun 24 01:55:02 CEST 2007
290 - make JSON::XS::true and false special overloaded objects
291 and return those instead of 1 and 0 for those json atoms
292 (JSON::PP compatibility is NOT achieved yet).
293 - add JSON::XS::is_bool predicate to test for those special
294 values.
295 - add a reference to
296 http://jpsykes.com/47/practical-csrf-and-json-security.
297 - removed require 5.8.8 again, it is just not very expert-friendly.
298 Also try to be more compatible with slightly older versions,
299 which are not recommended (because they are buggy).
300
301 1.24 Mon Jun 11 05:40:49 CEST 2007
302 - added informative section on JSON-as-YAML.
303 - get rid of some c99-isms again.
304 - localise dec->cur in decode_str, speeding up
305 string decoding considerably (>15% on my amd64 + gcc).
306 - increased SHORT_STRING_LEN to 16kb: stack space is
307 usually plenty, and this actually saves memory
308 when !shrinking as short strings will fit perfectly.
309
310 1.23 Wed Jun 6 20:13:06 CEST 2007
311 - greatly improved small integer encoding and decoding speed.
312 - implement a number of µ-optimisations.
313 - updated benchmarks.
314
315 1.22 Thu May 24 00:07:25 CEST 2007
316 - require 5.8.8 explicitly as older perls do not seem to offer
317 the required macros.
318 - possibly made it compile on so-called C compilers by microsoft.
319
320 1.21 Wed May 9 18:40:32 CEST 2007
321 - character offset reported for trailing garbage was random.
322
323 1.2 Wed May 9 18:35:01 CEST 2007
324 - decode did not work with magical scalars (doh!).
325 - added latin1 flag to produce JSON texts in the latin1 subset
326 of unicode.
327 - flag trailing garbage as error.
328 - new decode_prefix method that returns the number
329 of characters consumed by a decode.
330 - max octets/char in perls UTF-X is actually 13, not 11,
331 as pointed out by Glenn Linderman.
332 - fixed typoe reported by YAMASHINA Hio.
333
334 1.11 Mon Apr 9 07:05:49 CEST 2007
335 - properly 0-terminate sv's returned by encode to help
336 C libraries that expect that 0 to be there.
337 - partially "port" JSON from C to microsofts fucking broken
338 pseudo-C. They should be burned to the ground for pissing
339 on standards. And I should be stoned for even trying to
340 support this filthy excuse for a c compiler.
341
342 1.1 Wed Apr 4 01:45:00 CEST 2007
343 - clarify documentation (pointed out by Quinn Weaver).
344 - decode_utf8 sometimes did not correctly flag errors,
345 leading to segfaults.
346 - further reduced default nesting depth to 512 due to the test
347 failure by that anonymous "chris" whose e-mail address seems
348 to be impossible to get. Tests on other freebsd systems indicate
349 that this is likely a problem in his/her configuration and not this
350 module.
351 - renamed json => JSON in error messages.
352 - corrected the character offset in some error messages.
353
354 1.01 Sat Mar 31 16:15:40 CEST 2007
355 - do not segfault when from_json/decode gets passed
356 a non-string object (reported by Florian Ragwitz).
357 This has no effect on normal operation.
358
359 1.0 Thu Mar 29 04:43:34 CEST 2007
360 - the long awaited (by me) 1.0 version.
361 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
362 true and false.
363 - add some more notes to shrink, as suggested by Alex Efros.
364 - improve testsuite.
365 - halve the default nesting depth limit, to hopefully make it
366 work on Freebsd (unfortunately, the cpan tester did not
367 send me his report, so I cannot ask about the stack limit on fbsd).
368
369 0.8 Mon Mar 26 00:10:48 CEST 2007
370 - fix a memleak when decoding hashes.
371 - export jsonToBj and objToJson as aliases
372 to to_json and from_json, to reduce incompatibilities
373 between JSON/JSON::PC and JSON::XS. (experimental).
374 - implement a maximum nesting depth for both en- and de-coding.
375 - added a security considerations sections.
376
377 0.7 Sun Mar 25 01:46:30 CET 2007
378 - code cleanup.
379 - fix a memory overflow bug when indenting.
380 - pretty-printing now up to 15% faster.
381 - improve decoding speed of strings by
382 up to 50% by specialcasing short strings.
383 - further decoding speedups for strings using
384 lots of \u escapes.
385 - improve utf8 decoding speed for U+80 .. U+7FF.
386
387 0.5 Sat Mar 24 20:41:51 CET 2007
388 - added the UTF-16 encoding example hinted at in previous
389 versions.
390 - minor documentation fixes.
391 - fix a bug in and optimise canonicalising fastpath
392 (reported by Craig Manley).
393 - remove a subtest that breaks with bleadperl (reported
394 by Andreas König).
395
396 0.31 Sat Mar 24 02:14:34 CET 2007
397 - documentation updates.
398 - do some casting to hopefully fix Andreas' problem.
399 - nuke bogus json rpc stuff.
400
401 0.3 Fri Mar 23 19:33:21 CET 2007
402 - remove spurious PApp::Util reference (John McNamara).
403 - adapted lots of tests from other json modules
404 (idea by Chris Carline).
405 - documented mapping from json to perl and vice versa.
406 - improved the documentation by adding more examples.
407 - added short escaping forms, reducing the created
408 json texts a bit.
409 - added shrink flag.
410 - when flag methods are called without enable argument
411 they will by default enable their flag.
412 - considerably improved string encoding speed (at least
413 with gcc 4).
414 - added a test that covers lots of different characters.
415 - clarified some error messages.
416 - error messages now use correct character offset
417 with F_UTF8.
418 - improve the "no bytes" and "no warnings" hacks in
419 case the called functions do... stuff.
420 - croak when encoding to ascii and an out-of-range
421 (non-unicode) codepoint is encountered.
422
423 0.2 Fri Mar 23 00:23:34 CET 2007
424 - the "could not sleep without debugging release".
425 it should basically work now, with many bugs as
426 no production tests have been run yet.
427 - added more testcases.
428 - the expected shitload of bugfixes.
429 - handle utf8 flag correctly in decode.
430 - fix segfault in decoder.
431 - utf8n_to_uvuni sets retlen to -1, but retlen is an
432 unsigned types (argh).
433 - fix decoding of utf-8 strings.
434 - improved error diagnostics.
435 - fix decoding of 'null'.
436 - fix parsing of empty array/hashes
437 - silence warnings when we prepare the croak message.
438
439 0.1 Thu Mar 22 22:13:43 CET 2007
440 - first release, very untested, basically just to claim
441 the namespace.
442
443 0.01 Thu Mar 22 06:08:12 CET 2007
444 - original version; cloned from Convert-Scalar
445